Selecting hierarchical facilities in a service-operations environment.

Vaidyanathan Jayaraman Rakesh Gupta Hasan Pirkul Selecting hierarchical facilities in a service-operations environment. 613-628 2003 147 European Journal of Operational Research 3 http://dx.doi.org/10.1016/S0377-2217(02)00300-4 db/journals/eor/eor147.html#JayaramanGP03